See attached my part. It's a 3mm sheet metal part that I want to bend in 4 places, one of them indicated by a sketch line. I managed to bend with the method for simple parts, such as a padded rectangle. I'm really at a loss here. Is there any way for FreeCAD to show detailed error messages? That mi...

My feature request for part design

* Add Taper outward angle option part design extrude also [now available part extrude].
* Add extrude up to faces if more than one face come [same can be done part with join -> connect objects].

pls use measurement tool from part workbench [with tape icon]. About no of side increase seem to be bug in Part2d offset. For 2 sides, it will add one more line. if more than two,it will do correctly.

First select all faces. then click menu Part -> join -> connect objects. Then apply offset. It will generate open 3d offset, not possible for filled shape. Edit : [reason for not a good filled shape, but i am not sure] All faces normal should be pointing outward. but Some faces normal are towards in...

Manually You have to check the condition, relief width ['reliefw'] should be equal or less than gap[say gap1 or gap2]. In attached file, reliefw = 8mm, so it is cutting at 8mm even gap 0.61. Pls adjust to reliefw = 0.61 to get it correctly.

Thank for support.
I used "Spreadsheet.coil_l / .IntervalY.y". Now I corrected to Spreadsheet.coil_l * 1mm / .IntervalY.y.

But error message too complicated to understand as a user.

If it is like "[error] Unit mismatch", very easily understandable.

When i use draft array, it giving an error. 309.168 <App> Document.cpp(3368): exception in Unnamed#Array thrown: bad cast Sample file attached. OS: Windows 10 (10.0) Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.19.17877 (Git) Build type: Release Branch: master Hash: 1e19ef5be4735f...

Just for info
Bricscad shape sketchup alternative for linux
https://www.omgubuntu.co.uk/2019/07/bri ... tive-linux

By Wednesday, I can check.

We can change x+ y to max(x,y) line 356 & 357. While adding x + y gap 5 + 5 become 10. So that May be the problem.

same issue for me also. during export 232 faces only exporting, balance around 300 face left.